It is to get the rocket going fast enough to escape Earth's gravity.
是为了让火箭的速度足够快，足以逃离地球的引力。
2
So we are burning up an enormous amount of fuel at every launch just to get the rocket up to what's known as escape velocity.
所以每一次发射我们都要耗费大量的燃料来让火箭达到所谓的“逃逸速度”。
3
Even the infamous bounty hunter Boba Fett could not escape the disgusting creature, as an out-of-control rocket pack deposited the armored hunter into the Sarlacc's gullet.